Ningbo Zhonggao Rubber & Plastic Manufacturing Co., Ltd. is one of the most reliable manufacturers and suppliers of rubber u channels in China. The company has world-leading production equipment and strong manufacturing capabilities. Welcome to wholesale custom made rubber u channels from our factory.
Material Properties
Low friction and high wear resistance
• The surface is specially lubricated, the friction coefficient is reduced by 30%-40%, and it is matched with a wear-resistant rubber substrate (such as PU or NBR);
• The wear rate under dynamic conditions is only 1/3 of that of ordinary rubber, and the service life is extended by 2-3 times.
Compression and shear resistance
• The U-shaped cross-section design disperses pressure, increases compressive strength by 50%, and achieves shear resistance of 10-15 MPa;
• Suitable for frequent force or dynamic load scenarios (such as automobile chassis support and industrial equipment buffer).
Wide temperature adaptability
• When using EPDM or silicone rubber materials, it can work stably in extreme temperatures from -40℃ to +200℃;
• Suitable for outdoor equipment, northern buildings and high-temperature industrial environments.
Chemical corrosion resistance and waterproofness
• FKMs (fluororubber) or EPDM materials have a dense molecular structure and are resistant to oil, acid and alkali, ozone and ultraviolet aging;
• They can maintain stable performance even in long-term contact with chemical media or humid environments.
Sealing and diversion function
• The U-shaped groove can guide the directional flow of liquid or gas, and is designed with elastic sealing lip;
• The waterproof level can reach IP67;
• It is suitable for pipeline joints, equipment diversion grooves and other scenarios.
Environmental protection and easy processing
• Halogen-free, heavy metal-free, compliant with RoHS and REACH environmental standards;
• Can be hot-pressed, cut or bonded to meet complex sizes and large-scale production needs.
Technical Parameters
|
Hardness (Shore A) |
Tensile Strength |
Elongation at Break |
Compression Set |
Color |
Common Materials |
Operating Temperature |
Environmental Resistance |
Applications |
|
Solid: 50–70 Foamed: 30–60 |
≥4–6 MPa |
≥300% |
Solid: ≤30% (70°C × 22h) Foamed: ≤30% (70°C × 24h) |
Customizable |
Nitrile Rubber (NBR) |
-40° to 120°C |
Oil resistant, wear resistant |
Engine surroundings, near oil lines; oil pumps, oil tanks, construction machinery; equipment seals in oily environments |
|
Chloroprene Rubber (CR) |
-40° to 120°C |
Weather resistant, aging resistant, flame retardant |
Electrical cabinets, distribution panels; ventilation ducts, HVAC equipment; flame-retardant required areas |
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|
Ethylene Propylene Diene Monomer (EPDM) |
-50° to 150°C |
Water resistant, steam resistant, aging resistant |
Building doors and windows, curtain wall seals; automotive door frames, sunroofs, trunks; outdoor cabinets, distribution boxes, equipment enclosures; ships, containers, outdoor machinery |
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|
Silicone Rubber (VQM) |
-70° to 220°C |
Extreme temperature resistant, biocompatible |
Ovens, steamers, high-temperature equipment; food machinery, medical devices; extreme temperature sealing |
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|
Natural Rubber (NR) |
-60° to 90°C |
Elastic, wear resistant, tear resistant |
Cushioning, anti-collision strips; light machinery; door/ window impact protection |
Customized Services
Materials and Performance
NBR (nitrile rubber): oil-resistant, wear-resistant, cost-effective, suitable for hydraulic systems, fuel contact environments and industrial equipment seals.
FKM (fluororubber): high temperature resistance (-20°C ~ 320°C), chemical corrosion resistance, suitable for high-temperature environments, acid-base media and chemical field seals.
PU (polyurethane): high wear resistance, extrusion resistance, suitable for high-pressure dynamic support, frequent friction or tear resistance.
EPDM (ethylene propylene diene monomer rubber): water-resistant, steam-resistant, aging-resistant, suitable for hot water pipes, outdoor equipment and food-grade seals.
Silicone rubber (VMQ): extreme temperature resistance (-70°C ~ 220°C), good biocompatibility, suitable for medical equipment, laboratories and low-temperature environments.
Other Customization Options
Cross-section and size: U-groove depth, width, wall thickness and length can be customized to suit special workstations or space restrictions.
Color and marking: Black, transparent, and color options are available, and laser engraving or barcode marking is supported to facilitate system differentiation and traceability.
Functional enhancement: Embed metal sheets or fiber reinforcement layers to improve tensile strength or conductivity to meet complex working conditions.
Certification and testing: Material verification is performed in accordance with industry standards (such as FDA, RoHS, ISO 9001) to ensure compliance and safety.
FAQ
Q: How long can I expect to get the sample?
A: After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 3 -8 days. The samples will be sent to you via express and arrive in 3-8 days.
Q: Can we visit your factory before place the order?
A: Yes,Very welcome that must be nice to set up good relationship for business.
Q: Is there the products tested before shipping?
A: Yes, of course. All of our products we all will has been 100% QC before shipping. We test every batch every day.
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